| Humacao to Sestu | 4,637.87 mi (7,463.92 km) |
| Humacao to Settimo Torinese | 4,545.07 mi (7,314.58 km) |
| Humacao to Seveso | 4,610.16 mi (7,419.34 km) |
| Humacao to Sezze | 4,829.86 mi (7,772.90 km) |
| Humacao to Siano | 4,920.09 mi (7,918.12 km) |
| Humacao to Siena | 4,728.79 mi (7,610.25 km) |
| Humacao to Signa | 4,714.51 mi (7,587.28 km) |
| Humacao to Silea | 4,762.38 mi (7,664.31 km) |
| Humacao to Silvi Paese | 4,874.52 mi (7,844.78 km) |
| Humacao to Sinalunga | 4,749.56 mi (7,643.68 km) |
| Humacao to Siniscola | 4,661.81 mi (7,502.46 km) |
| Humacao to Sinnai | 4,643.77 mi (7,473.43 km) |
| Humacao to Siracusa | 4,991.48 mi (8,033.01 km) |
| Humacao to Solaro | 4,607.67 mi (7,415.33 km) |
| Humacao to Soliera | 4,700.74 mi (7,565.10 km) |
